In an embodiment the dielectric layer comprises a fluoropolymer, a plurality of boron nitride particles, a plurality of titanium dioxide particles, a plurality of silica particles; and a reinforcing layer. The dielectric layer can comprise at least one of 20 to 45 volume percent of the fluoropolymer, 15 to 35 volume percent of the plurality of boron nitride particles, 1 to 32 volume percent of the plurality of titanium dioxide particles, 10 to 35 volume percent of the plurality of silica particles, and 5 to 15 volume percent of the reinforcing layer; wherein the volume percent values are based on a total volume of the dielectric layer.

A method for producing a fluoropolymer powder including (A1) adding, to a fluoropolymer aqueous dispersion obtained by polymerization using a carboxylic acid type hydrocarbon surfactant, and an acid to adjust a pH to 4.0 or less and cause coagulation to thereby obtain a wet fluoropolymer powder containing a fluorine-containing compound represented by the following general formula (1A), and (B1) heat-treating the wet fluoropolymer powder at a temperature higher than 150° C. and lower than 240° C.: General Formula (1A): H—(CF.sub.2).sub.m—COOH wherein m is 3 to 19.

[Problem]

To provide a laminate body in which a resin base member and a metal deposition film are brought into firmly close contact with each other.

[Solution]

The laminate body manufacturing method includes a desorption step S10, an introduction step S20, a deposition step S30, and a coating step S40. In the desorption step S10, a hydrophobic surface of resin is irradiated with plasma to desorb at least some of the atoms constituting the resin from the surface. In the introduction step S20, the surface of the resin subjected to the desorption step S10 is irradiated with hydroxyl radicals to introduce a hydroxyl group onto the surface of the resin. In the deposition step S30, a metal film is deposited on the surface of the resin subjected to the introduction step S20. In the coating step S40, the surface of the metal film is coated with a metal layer formed of the same metal as the metal forming the metal film.

A liquid crystal polyester resin composition includes a liquid crystal polyester resin (A); a solvent (B) in which the liquid crystal polyester resin (A) is dissolved; a fluorine resin (C); and an inorganic filler (D), wherein 100 to 5,000 parts by weight of the solvent (B), 5 to 300 parts by weight of the fluorine resin (C) and 1 to 300 parts by weight of the inorganic filler (D) are included relative to 100 parts by weight of the liquid crystal polyester resin (A).

A laminated plate has a metallic conductive layer layered on one surface or each surface of an insulating substrate, the insulating substrate contains a fluorine resin and a polymer of an alkoxysilane, and the fluorine resin is dispersed in the polymer of the alkoxysilane.

Provided in this patent disclosure are two types of novel fluoro-monomers that can be polymerized for the fabrication of ion-exchange fluoropolymers. In addition, new proton-conductive zirconium-perfluorophosphonic acid fluoropolymer membranes that can reduce metal crossovers in redox flow batteries are also provided.

An acidic gas separation membrane sheet causes an acidic gas to selectively permeate therethrough. The acidic gas separation membrane sheet includes a first porous layer, a hydrophilic resin composition layer, and a second porous layer in this order. A second peel strength between the second porous layer and the hydrophilic resin composition layer is less than a first peel strength between the first porous layer and the hydrophilic resin composition layer. An average value of the second peel strength is within a range of greater than or equal to 5 N/m and less than or equal to 500 N/m.

A fluorine-containing polymer achieving both low resistivity and high thermal stability, which have been conventionally conflicting, a cation exchange membrane including the fluorine-containing polymer, and an electrolyzer including the cation exchange membrane. The cation exchange membrane including: the fluorine-containing polymer, which includes: a tetrafluoroethylene unit (A); and a perfluoroethylene unit (B) having a carboxylic acid-type ion exchange group, where the fluorine-containing polymer has a main-chain terminal structure (T) represented by the following formula (1):
—(C.sub.mF.sub.nH.sub.2m−n)—OH   (1) in which m and n each represent any integer satisfying m≥2, n≥0, and 2m−n≥1.

A method of manufacturing a fluid control device includes extruding a polymer melt into a chamber defined by an outer surface of a support structure and a disintegrable metallic tubular member disposed at the support structure, the polymer melt comprising a high heat polymer and a foaming agent, the high heat polymer having a heat deflection temperature of about 100° C. to about 300° C. measured at 1.82 MPa in accordance with ASTM D648-18; sealing the chamber; and foaming the high heat polymer to produce a porous filtration medium in a compacted shape.

The present disclosure discloses an asymmetric electrolyte membrane, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same. More particularly, it discloses an asymmetric electrolyte membrane having a porous layer and a dense layer at the same time, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same.